Neck sympathetic chain involvement

In the neck, the sympathetic nervous system has two main parts, the sympathetic chain and the vertebral nerve. All cervical sympathetic ganglia are gray unmyelinated postganglionic nerves. They start with degenerative changes in the cervical spine from sympathetic ganglia and other conditions that can cause sympathetic nerve dysfunction. If the cervical transverse process is moved forward or backward, it can also cause cervical sympathetic joints to be stretched and compressed; the intervertebral foramen can be deformed and narrowed, and the sympathetic nerve fibers in the meningeal return branch can be stimulated or oppressed, which can also cause sympathetic nerves. Dysfunction.